ScalingΒΆ
Scaling allows to reduce the camera resolution by an arbitrary non-integer factor during rectification. The camera raw images stay at their original size, but the rectified images , DisparityMap and PointMap will be scaled by the specified factor to improve stereo matching runtime. This allows you to choose your own tradeoff between image resolution and performance.
Format
Number |
A positive real number between 0.25 and 1.0. |
Default
0.5 |
When using a GigE camera from NxLib32 |
1.0 |
When using NxLib64 or an N10 camera. |
Note
Setting a new Scaling factor immediately clears and resizes the affected image nodes.
Note
As Scaling only affects the rectified images you might set a new Scaling factor and rerun ComputeDisparityMap without capturing a new image pair! You could therefore use Scaling for fast object detection in low resolution, and then perform measurements in higher resolution by setting Scaling to 1 without the need to capture an additional image pair.
Effects on other parameters
You might want to adjust DepthChangeCost, DepthStepCost and the PostProcessing parameters for optimal 3D data results after changing the binning factor. The disparity range is internally adjusted to keep the original measurement volume set with binning factor 1 and scaling factor 1.